$primary-color: #FF0000;
$main-color: #f6f6f6;

* {
  padding: 0;
  margin: 0;
  box-sizing: border-box; //让盒子包括宽度包括内边距和外边距
}

a {
  text-decoration: none; //去掉下划线
}

ul {
  list-style: none; //去掉ul的小圆点
}

body {
  background-color: $main-color;
}

@media (min-width: 1250px) {

  .container-xl,
  .container-lg,
  .container-md,
  .container-sm,
  .container {
    max-width: 1220px;
  }
}